The average age of a class of 40 students and a teacher reduces by 0.5 years, if we exclude the teacher. If the initial average age is 18 years, then what is the age of the teacher?
5 826 6411b68c67ad957a9775b7f3
Q:
The average age of a class of 40 students and a teacher reduces by 0.5 years, if we exclude the teacher. If the initial average age is 18 years, then what is the age of the teacher?
- 138 yearstrue
- 240 yearsfalse
- 339 yearsfalse
- 441 yearsfalse
- Show Answer
- Workspace
- Discuss